n.

1. （天體等的）運行軌道[C][U]
   The satellite was launched into orbit around the moon.

   衛星被發射進入繞月球運行的軌道。

2. 勢力範圍；活動範圍；知識範圍[C][U]
   They knew each other by sight, but their orbits did not touch.

   他們見面認識，但各有各的生活圈子。

3. 眼窩；眼眶；眼睛；眼球[C]

vt.

1. 環繞（天體等）的軌道運行
   The earth orbits the sun.

   地球繞著太陽運行。

2. 使進入軌道
   The space shuttle will orbit a weather satellite.

   太空梭將把一個氣象衛星送入運行軌道。

vi.

1. 繞軌道運行；盤旋飛行
   The plane is orbiting over the field, waiting for the signal to land.

   飛機在繞機場盤旋，等待降落的信號。

2. 把人造設備射入軌道

n.

1. the regularly repeated elliptical course of a celestial object or spacecraft about a star or planet.
   ▸the path of an electron round an atomic nucleus.
2. a field of activity or influence:
   they brought many friends within the orbit of our lives.
3. Anatomy  the eye socket.

v.